Armature: Rename bone shaders and add 2 colors smooth blending.

This will enable us to do more nice stuff in future commits.

This commit is a temporary commit, it will compile but will crash if
trying to display any armature. Next commit does work.

1 files changed, 16 insertions, 0 deletions

diff --git a/source/blender/draw/modes/shaders/armature_envelope_solid_frag.glsl b/source/blender/draw/modes/shaders/armature_envelope_solid_frag.glsl
new file mode 100644
index 00000000000..3e6ad48700e
--- /dev/null
+++ b/source/blender/draw/modes/shaders/armature_envelope_solid_frag.glsl
@@ -0,0 +1,16 @@
+
+flat in vec3 finalStateColor;
+flat in vec3 finalBoneColor;
+in vec3 normalView;
+
+out vec4 fragColor;
+
+void main()
+{
+	/* Smooth lighting factor. */
+	const float s = 0.2; /* [0.0-0.5] range */
+	float n = normalize(normalView).z;
+	float fac = clamp((n * (1.0 - s)) + s, 0.0, 1.0);
+	fragColor.rgb = mix(finalStateColor, finalBoneColor, fac);
+	fragColor.a = 1.0;
+}